25451980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31039}}^1$

素因数の和:31089

約数の個数: 24

約数和(自身を含む): 54754560

約数和(自身を除く): 29302580

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 31039, 62078, 124156, 155195, 310390, 620780, 1272599, 2545198, 5090396, 6362995, 12725990, 25451980]

約数ペア:

[(1, 25451980), (2, 12725990), (4, 6362995), (5, 5090396), (10, 2545198), (20, 1272599), (41, 620780), (82, 310390), (164, 155195), (205, 124156), (410, 62078), (820, 31039)]